product name : 61 keys roll up piano (stereo speaker portable piano C04061DB )

model : C04061DB

keys : 61 keys

headphone jack : yes

speaker jack : yes

MIDI jack : yes

rythum : 100 distinct rythum for selection

instrument tones : 100 different instrument tones

demo : 10 demo play

record and playback function : yes

chord accompaniment : yes

sustain function : yes

vibration function : yes

volume control function : yes

power :  4 AA batteries / AC adaptor